Rule or measure



UNITED STATES PATENT Erica FRANK J. KELLOGG, OF BATTLE 'CREEIQ MIOHIGAN.

RULE oR wH-:Asumal SPECIFICATION forming part of Letters Patent No. 290,889, dated December 25, 1883.

Application filed February 27, 1893. Renewed November 3, 1883. (No model.)

.To all whom it ma/y concern:

Be it known that I, FRANK J. KnLLooe, a citizien of the United States of America, residing` at Battle Creek, in the county of Oalhoun and State of Michigan, have invented certain new and useful Improvements in Rules or Measures, of which the following is .a specification.

My invention relates to an improvement in rules and measures; and it consists in providing one part of a jointed rule, yard-stick, or other measure with a spring-hook adapted to engage with a graduated series of holes in the other part, whereby the two parts may be set and held rigidly at any angle with each other, or held in a straight line, as may be desired, substantially as will 'be hereinafter more fully set forth.

In order to enable others skilled in the art to Which my invention appertains to make and use the same, I will now proceed to describe its construction and Operation, referring to the accompanying` drawings, in which- Figure 1 is a View of a carpenterls rule pro- Vided with my improvenient; Fig. 2, a view of a jointed yard-stick; Fig. 3, a reverse side view of the rule in a different position, and Fig. 4 is a modification of the manner of applying the device.

A represents acommon rule or yard-stick, jointed as shown in Figs. 1 and 2, and staniped or provided with graduations upon one side, numbered from one end to the other, and upon the other numbered from the joint toward each end.- The series of holes are graduated to set the arm at forty-five degrees, ninety degrees, thirty degrees, or whatever desired angle with refereuce to the other part. One arm of this rule or measure is provided with a pivoted spring,

B, having its free end or point'formed with an inwardly-projecting` pin, b, (shown in dotted lines,) which pin is adapted to enter one of a series of holes, a., arranged in the other part of the rule, as shown. WVhen it is desired to use thefull length of the rule, it isf/rig opened out and held in thatposition bythe catch B engaging with one of the holes a. If it is desired to rule any particular angle, or measure or cut at an angle or on the bias, as frequently occurs in carpentry, tailoring, &c., the parts of the rule or measure may be quickly adjusted to the desired angle and held firmly in that position. The holes a a may, if desired, be marked with theangle they represent, to facilitate setting the measure.

In Fig. 4 I have shown a modification of the mode of applying this dcvice to a rule which will be found very compact and cheap and eqnally as good as the one illustrated in the other iigures.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The rule or measure A, jointed and marked as herein described, and one part provided with a series of holes graduated to set the arm at different angles, in combination with the spring B, pivoted upon one part of the measure, and provided with pin b, adapted to engage with the holes in the other, substantiall y as and for the purpose set forth.

In testimony Whereof I affix my signature in presence of two witnesses.

FRANK J. KELLOGG.

W'itnesses:

P. M. DILL, WM. ATKINs. 

